package com.hjz.hongbaotest.utils;

import java.security.MessageDigest;

public class Md5Tool {

	/**
	 * @MD5 32位加密
	 */
	public String getMD5Str(String str) {

		str = "haha:" + str + ":xixi";
		String newStr = "";

		try {

			MessageDigest messageDigest = MessageDigest.getInstance("MD5");
			messageDigest.reset();
			messageDigest.update(str.getBytes("UTF-8"));

			byte[] byteArray = messageDigest.digest();
			StringBuffer md5StrBuff = new StringBuffer();
			for (int i = 0; i < byteArray.length; i++) {
				if (Integer.toHexString(0xFF & byteArray[i]).length() == 1)
					md5StrBuff.append("0").append(Integer.toHexString(0xFF & byteArray[i]));
				else
					md5StrBuff.append(Integer.toHexString(0xFF & byteArray[i]));
			}

			newStr = md5StrBuff.toString();

		} catch (Exception e) {
			e.printStackTrace();
		}

		return newStr;

	}
	
	public static void main(String[] args) {
		Md5Tool tool = new Md5Tool();
		System.out.println(tool.getMD5Str("123456"));
	}
}
